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8 results on '"V. I. Bubnov"'

1. Critical behaviour in Au fragmentation at 10.7A GeV

Author

K. Söderström, P. Y. Zheng, L. K. Mangotra, K. G. Gulamov, R. Sethi, V. I. Bubnov, V. A. Plyushchev, S. Vokal, V. Kumar, Y.X. Li, Madan M. Aggarwal, V. S. Navotny, G.M. Chen, Joakim Nystrand, L. N. Svechnikova, L. P. Chernova, A.K. Musaeva, N. A. Salmanova, V. S. Bhatia, Anju Bhasin, N. Saidkhanov, C.I. Shakhova, L. S. Liu, V. G. Larionova, D. Skelding, J. T. Rhee, M. Tothova, E. R. Ganssauge, V. V. Rusakova, I. Y. Chasnikov, L. G. Sarkisova, C.B. Yang, Z. Q. Weng, Y. A. Alexandrov, Bo Jakobsson, Rashmi Raniwala, L. Karlsson, L.S. Peak, R. J. Wilkes, J. J. Lord, S.A. Krasnov, I. Manhas, V. R. Sarkisyan, J. Grote, N.A. Tawfik, Dong-Hai Zhang, M. I. Tretyakova, S.Z. Nasyrov, N. G. Peresadko, E. S. Basova, A.M. Seitimbetov, N. K. Rao, Janka Vrlakova, D. C. Zhou, A. S. Gaitinov, X. Cai, U.I. Tuleeva, F. A. Avetyan, A. M. Bakich, M. Roeper, Maria Haiduc, M. Karabova, M. M. Chernyavski, L. Just, H. Q. Wang, E. K. Kanygina, S. Garpman, M. I. Adamovich, X.R. Wang, W. Y. Qian, S. K. Badyal, Z.G. Liu, S. I. Zhokhova, Alexander Kovalenko, B. Singh, N. P. Andreeva, S. B. Luo, S. P. Kharlamov, T. P. Trofimova, Shi-kun Wang, V. G. Bogdanov, U. Henjes, S. G. Gerassimov, Y.M. Qin, N. S. Lukicheva, G. I. Orlova, Vivek K. Gupta, Shiv K. Gupta, K. B. Bhalla, S. Dhamija, R. Amirikas, Evert Anders Stenlund, N. A. Marutyan, S. Lokanathan, Y. Lu, V. Bradnova, and I. Otterlund

Subjects
Physics, Nuclear and High Energy Physics, Phase transition, education.field_of_study, Hadron, Population, Charge density, Supercritical fluid, Nuclear physics, Fragmentation (mass spectrometry), Nuclear fusion, Nuclear emulsion, Nuclear Experiment, education
Abstract

The complete charge distribution of products from Au nuclei fragmenting in nuclear emulsion at 10.7A GeV has been measured. Multiplicities of produced particles and particles associated with the target source are used to select peripheral and central events. A statistical analysis, based on event-by-event charge distributions, show that a population of subcritical, critical and supercritical events, i.e. a phase transition like behaviour, is observed among peripheral collisions.

Published
1998

2. 28Si(32S) fragmentation at 3.7 A, 14.6 A and 200 A GeV

Author

M. I. Tretyakova, X. Cai, L. N. Svechnikova, B.P. Tursunov, L. E. Eremenko, G. S. Shabratova, Bo Jakobsson, M. Ochs, S. Vokal, R. Raniwala, Alexander Kovalenko, T. H. Burnett, R. J. Wilkes, V. R. Sarkisyan, S. K. Gupta, V. I. Bubnov, V. A. Plyushchev, Renu Arora, G. S. Kalyachkina, T. P. Trofimova, V. S. Bhatia, L. S. Liu, V. G. Larionova, C.B. Yang, S.Z. Nasyrov, V. K. Gupta, S. P. Kharlamov, L. P. Chernova, V. G. Bogdanov, V. Bradnova, V. V. Rusakova, Y. L. Xia, Z.V. Anzon, Y.M. Qin, N. P. Andreeva, D. H. Zhang, S. Kachroo, I. Y. Chasnikov, V. S. Navotny, S. G. Gerassimov, Anju Bhasin, N. Saidkhanov, Y. A. Alexandrov, N. V. Petrov, C. Graf, K. Söderström, D. Skelding, M. M. Chernyavski, N. G. Peresadko, E. S. Basova, M. Karabova, K. B. Bhalla, S. B. Luo, G. I. Orlova, K. G. Gulamov, V. Kumar, Z. Q. Weng, H. Q. Wang, R. Amirikas, F. A. Avetyan, S. Garpman, S. K. Badayal, S. Dhamia, J. Nystrand, N. S. Lukicheva, Z. I. Solovieva, D. C. Zhou, W. Y. Qian, S. N. Shpilev, S. A. Karsnov, I. S. Mittra, G. Z. Eligbaeva, A. S. Gaitinov, C.I. Shakhova, L. G. Sarkisova, A. M. Bakich, S. Mokerjee, E. K. Kanygina, S. Kitroo, A.M. Seitimbetov, N. K. Rao, Janka Vrlakova, S. Lokanathan, L.S. Peak, J. J. Lord, J. Grote, M. Tothova, M. I. Adamovich, Sudhir Raniwala, Evert Anders Stenlund, P. Y. Zheng, L. K. Mangotra, M. Roeper, E. R. Ganssauge, N. V. Maslennikova, S. I. Zhokhova, M. M. Aggarwal, N. A. Marutyan, A.Y. Mashkov, I. K. Bazarov, Y. D. Li, L. Just, N. A. Salmanova, D. A. Carshiev, U.I. Tuleeva, and I. Otterlund

Subjects
Nuclear reaction, Nuclear physics, Physics, Nuclear and High Energy Physics, Fragmentation (mass spectrometry), Astrophysics::High Energy Astrophysical Phenomena, Charge density, Nuclear fusion, High Energy Physics::Experiment, Spallation, Atomic physics, Nuclear Experiment
Abstract

The fragmentation topology of28Si at 3.7A GeV and 14.6A GeV and32S at 200A GeV in reactions with emulsion nuclei is presented. The fragmentation cross sections are very similar at all three energies. A statistical percolation model can qualitatively describe the data forZ≥ 6. The He production is underestimated and the 3 ≤Z ≤ 5 fragments overestimated by this model.

Published
1995

3. Helium production in 10.7 A GeV Au induced nucleus-nucleus collisions

Author

D. Skelding, L. K. Mangotra, R. J. Wilkes, M. I. Tretyakova, X. Cai, M. Ochs, J. J. Lord, D. C. Zhou, J. Grote, S. Kitroo, N. A. Salmanova, Janka Vrlakova, A. M. Bakich, B.P. Tursunov, L. E. Eremenko, I. S. Mittra, L. P. Chernova, Evert Anders Stenlund, Bo Jakobsson, M. Karabova, H. Q. Wang, S.Z. Nasyrov, Z. I. Solovjeva, S. Vokal, N. P. Andreeva, C.I. Shakhova, W. Y. Qian, V. R. Sarkisyan, S. Kachroo, D. H. Zhang, N. S. Lukicheva, S. P. Kharlamov, S. K. Badyal, C. Graf, S. G. Gerassimov, V. G. Bogdanov, Y. L. Xia, I. Y. Chasnikov, Z.V. Anzon, K. Söderström, E. R. Ganssauge, Y. A. Alexandrov, V. I. Bubnov, Y.M. Qin, N. V. Petrov, G. S. Kalyachkina, M. I. Adamovich, L. Just, M. Tothova, V. V. Rusakova, F. A. Avetyan, Anju Bhasin, M. Roeper, M. M. Chernyavski, N. Saidkhanov, L.S. Peak, S. B. Luo, A. S. Gaitinov, N. G. Peresadko, E. S. Basova, K. B. Bhalla, R. Amirikas, I. Otterlund, Z. Q. Weng, L. G. Sarkisova, S. Garpman, S. N. Shpilev, Alexander Kovalenko, D. A. Carshiev, M. M. Aggarwal, U.I. Tuleeva, Sudhir Raniwala, N. V. Maslennikova, T. P. Trofimova, N. A. Marutyan, A.Y. Mashkov, I. K. Bazarov, E. K. Kanygina, T. H. Burnett, S. I. Zhokhova, S. Dhamija, V. K. Gupta, Y. D. Li, K. G. Gulamov, V. Kumar, P. Y. Zheng, G. Z. Eligbaeva, A.M. Seitimbetov, N. K. Rao, S. Lokanatan, J. Nystrand, V. Bradnova, S. Mokerjee, L. N. Svechnikova, G. S. Shabratova, R. Raniwala, V. S. Navotny, G. I. Orlova, S. K. Gupta, V. A. Plyushchev, Renu Arora, V. S. Bhatia, L. S. Liu, V. G. Larionova, C.B. Yang, and S.A. Krasnov

Subjects
Physics, Nuclear and High Energy Physics, chemistry.chemical_element, Nuclear physics, medicine.anatomical_structure, chemistry, Fragmentation (mass spectrometry), Total angular momentum quantum number, Angular momentum of light, Transverse momentum, medicine, Atomic physics, Nuclear Experiment, Nucleus, Helium
Abstract

Angular distributions of projectile-associated He fragments from Au induced reactions in nuclear emulsions at 10.7 A GeV have been measured with a precision of ±0.1 mrad. Two emission components are indubitably appearing, one representing fragmentation of a fermionic system while the other one exhibits large transverse momentum transfer. Possible explanations for the latter component are discussed.

Published
1994

4. A systematic study of the energy independent behaviour of the fragmentation regions in16O-Em interactions from 3.7 to 200A GeV

Author

H. O. Wang, V. I. Bubnov, S. Mookerjee, Z. V. Anson, Anju Bhasin, N. Saidkhanov, K. Söderström, M. Karabova, W. Y. Qian, B. Judek, N. S. Lukicheva, S. Kachroo, N. G. Peresadko, E. S. Basova, M. I. Adamovich, R. J. Wilkes, G. S. Kalyachkina, Gautam Kaul, N. A. Marutyan, D. Skelding, H. Nasrulaeva, P. Lal, U.I. Tuleeva, G. I. Orlova, G. F. Xu, Sudhir Raniwala, S. Lokanathan, N. A. Salmanova, V. M. Rappoport, G.S. Shabratova, S. B. Luo, A. S. Gaitinov, T. P. Trofimova, V. N. Lepetan, L. P. Chernova, J. J. Lord, P. Y. Zheng, J. Grote, T. Koss, D. C. Zhou, S. Garpman, K. D. Tolstov, I. Y. Chasnikov, I. Otterlund, Y. A. Alexandrov, N. P. Andreeva, E. R. Ganssauge, N. V. Petrov, S. G. Gerassimov, M. M. Chernyavski, F. A. Avetyan, S. K. Gupta, I. S. Mittra, V. A. Plyushchev, Rashmi Raniwala, F. G. Kadyrov, Z. I. Solovjeva, T. I. Shakhova, S. Vokal, J. Ravina, Renu Arora, Y. Z. Liu, M. I. Tretyakova, V. S. Bhatia, L. S. Liu, V. G. Larionova, X. Cai, N. K. Rao, Madan M. Aggarwal, K. B. Bhalla, V. S. Navotny, S. P. Kharlamov, V. G. Bogdanov, Z. O. Weng, L. G. Sarkisova, N. V. Maslennikova, E. K. Kanygina, L. E. Eremenko, Bo Jakobsson, V. R. Sarkisyan, S. K. Badyal, H. S. Palsania, S. H. Nasyrov, S. C. Strausz, K. G. Gulamov, V. Kumar, S. A. Krasnov, L. K. Mangotra, G. Z. Eligbaeva, Evert Anders Stenlund, T. H. Burnett, Dong-Hai Zhang, S. I. Zhochova, H. H. Heckman, L. N. Svechnikova, and J. T. Rhee

Subjects
Physics, Physics and Astronomy (miscellaneous), Projectile, Limiting, Statistical fluctuations, law.invention, Nuclear physics, Fragmentation (mass spectrometry), law, Intermittency, Incident energy, Multiplicity (chemistry), Nuclear Experiment, Engineering (miscellaneous), Scaling
Abstract

The scaling behaviour in the fragmentation regions is investigated for16O-Em interactions from 3.7 to 200A GeV. It is found that in both the projectile- and the target-fragmentation regions, the multiplicity and pseudo-rapidity distributions as well as the two-particle pseudo-rapidity correlations are independent of incident energy. The intermittency indices at 14.6, 60 and 200A GeV are the same within the experimental errors, indicating that the limiting fragmentation hypothesis works with regard to dynamical as well as statistical fluctuations.

Published
1992

5. STOCHASTIC EMISSION OF PARTICLES IN ULTRA-RELATIVISTIC HEAVY-ION COLLISIONS

Author

S. Mookerjee, S. Kachroo, N. G. Peresadko, E. S. Basova, L. K. Mangotra, F. G. Kadyrov, Z. I. Solovjeva, S. I. Zhochova, T. I. Shakhova, Sudhir Raniwala, N. V. Petrov, H. Nasrulaeva, G. I. Orlova, Gautam Kaul, I. Otterlund, Rashmi Raniwala, K. Söderström, M. M. Chernyavski, T. H. Burnett, D. Skelding, Madan M. Aggarwal, K. G. Gulamov, F. A. Avetyan, B. Singh, J. T. Rhee, S. P. Kharlamov, Z. V. Anson, V. G. Bogdanov, N. K. Rao, T. P. Trofimova, V. Kumar, V. S. Navotny, P. J. Lindstrom, V. A. Plyushchev, S. Vokal, V. M. Rappoport, H. Huang, E. K. Kanygina, L. N. Svechnikova, I. S. Mittra, U.I. Tuleeva, N. A. Marutyan, Renu Arora, H. S. Palsania, L. E. Eremenko, L. P. Chernova, X. Cai, S. Garpman, E. R. Ganssauge, V. S. Bhatia, K. B. Bhalla, L. S. Liu, V. G. Larionova, P. Y. Zheng, Vivek K. Gupta, G. Z. Eligbaeva, W. Schulz, N. A. Salmanova, Bo Jakobsson, Manjit Kaur, N. P. Andreeva, B. Dressel, K. D. Tolstov, V. R. Sarkisyan, H. H. Heckman, M. I. Adamovich, S. G. Gerassimov, P. Lal, S. A. Krasnov, I. Y. Chasnikov, Y. A. Alexandrov, Anju Bhasin, G. F. Xu, N. Saidkhanov, A. S. Gaitinov, R. J. Wilkes, S. K. Badyal, B. Judek, E. Stenlund, V. N. Lepetan, Z. Q. Weng, Dong-Hai Zhang, N. S. Lukicheva, J. F. Sun, E. M. Friedlander, L. G. Sarkisova, S. H. Nasyrov, S. B. Luo, S. Lokanathan, D. C. Zhou, N. V. Maslennikova, C. Mueller, J. C. Zhou, S. C. Strausz, M. L. Tretyakova, G. S. Kalyachina, S. K. Gupta, G.S. Shabratova, J. J. Lord, J. Grote, T. Koss, M. Karabova, H. Q. Wang, W. Y. Qian, and V. I. Bubnov

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Fragmentation (mass spectrometry), Particle number, Elliptic flow, General Physics and Astronomy, Astronomy and Astrophysics, Heavy ion, Relativistic particle
Abstract

In this letter we show that most of the fluctuations in particle densities observed in relativistic heavy-ion collisions are consistent with stochastic emission, i.e., most of the correlations between produced particles are washed out due to the vast number of particles in the environment. We further explore the general trends by investigating different systems, energies and centrality cuts. Comparisons with the Fritiof model show that string fragmentation gives results similar to the data.

Published
1991

6. Limiting Fragmentation, Scaling and Substructual Dependence of Multiparticle Production in High Energy Heavy Ion Reactions

Author

EMUO1 Collaboration, I Otterlund, M I Adamovich, M M Aggarwal, N P Andreeva, Z V Anson, Z V Ameeva, R Arora, Y A Alexandrov, S A Azimov, E Basova, K B Bhalla, A Bhasin, V S Bhatia, V I Bubnov, R A Bondarenko, T H Burnett, X Cai, I Y Chasnicov, L P Chernova, M M Chernyavsky, B Dressel, L E Eremenko, G Z Eligbaeva, E M Friedlander, S I Gadzhieva, A S Gaitinov, E R Ganssauge, S Garpman, S G Gerassimov, A Gill, J Grote, K G Gulamov, U G Gulyamov, S Hackel, H H Heckman, B Judek, S Kachroo, F G Kadyrov, H Kallies, G S Kalyachkina, E K Kanygina, G L Kaul, M Kaur, S P Kharlamov, T Koss, V Kumar, P Lal, V G Larionova, P J Lindstrom, L S Liu, S Lokanathan, J Lord, N S Lukicheva, L K Mangotra, N V Maslennikova, I S Mittra, S Mookerjee, C Mueller, S H Nasyrov, V S Navotny, G I Orlova, N G Peresadko, S Persson, N V Petrov, W Y Qian, R Raniwala, S Raniwala, N K Rao, J T Rhee, N Saidkhanov, N A Salmanova, T I Shakhova, W Schultz, V S Shukla, D Skelding, K Soderstrom, E Stenlund, R S Storey, S Strausz, J F Sun, L N Svechnikova, M I Tretyakova, T P Trofimova, H Q Wang, Z O Weng, R J Wilkes, G F Xu, D H Zhang, P Y Zheng, D C Zhou, and J C Zhou

Subjects
Physics, High energy, Astrophysics::High Energy Astrophysical Phenomena, Limiting, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Nuclear physics, Low energy, Fragmentation (mass spectrometry), Emulsion, High Energy Physics::Experiment, Heavy ion, Multiplicity (chemistry), Nuclear Experiment, Scaling, Mathematical Physics
Abstract

We report on recent results obtained by the EMUO1 collaboration from studies of 16O + emulsion, at 14.6, 60 and 200 A GeV, and 32S + emulsion and 32S + Au interactions at 200 A GeV. Shower-particle production in oxygen-induced interactions are studied over the energy range 2.1-200 A GeV. Scaling and limiting fragmentation are observed. Multiplicity and angular distributions of low energy target-associated particles are presented and compared with distributions obtained using the Ranft and the Fritiof simulation codes.

Published
1990

7. Fragmentation of22Ne in emulsion at 4.1A GeV/c

Author

Maria Haiduc, Ts.I. Shakhova, A. Sh. Gaitinov, D. Tuvdendorzh, V. G. Bogdanov, G. I. Orlova, V M Krishchyan, S G Bogdanov, V Topor, M A Marutyan, Z. I. Solovieva, M. I. Adamovich, L G Sarkisova, N. V. Maslennikova, M. Totova, V. I. Ostroumov, K. D. Tolstov, F. A. Avetyan, G. Zh. Eligbaeva, J. A. Salomov, L Sardamba, S. P. Kharlamov, E. Siles, Z.V. Anzon, R. Togoo, V. I. Bubnov, M. I. Tretyakova, N. A. Salmanova, G S Kalyachkina, I.Ya. Chasnikov, S.A. Krasnov, V. A. Leskin, S. Vokal, V. G. Larionova, A Y Likhachev, L.E. Eremenko, M M Chernyavaski, V A Plyuschev, B. B. Simonov, A.V. Belousov, M. Karabova, M. Šumbera, V. R. Sarkisyan, E. K. Kanygina, V.A. Antonchik, N. P. Andreeva, A. El-Naghy, M Gitsok, N I Kostanashvili, and F. G. Lepekhin

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Single process, Fragmentation (mass spectrometry), Projectile, Yield (chemistry), Emulsion, General Physics and Astronomy, Charge density, Charge (physics), Nuclear Experiment
Abstract

Charge distributions of projectile fragments produced in the interactions of 22Ne beams with emulsion at 4.1A GeV/c have been studied. Correlations between projectile and target fragments and among projectile fragments are presented. The change of charge yield distribution with the violence of the collision has been shown. The present analysis contradicts theoretical calculations describing the inclusive charge yield distribution of fragments by a single process.

Published
1988

8. He production in 158 A GeV/c Pb on Pb interactions

Author

N. V. Petrov, S. Garpman, S. Lokanathan, U.I. Tuleeva, S.Z. Nasyrov, G. S. Kalyachkina, Y. Lu, M. I. Tretyakova, V. A. Plyushchev, S. Vokal, X. Cai, K. Söderström, L. P. Chernova, Alexander Kovalenko, E. Stenlund, V. S. Bhatia, B.P. Tursunov, L. N. Svechnikova, L. Just, L. S. Liu, V. G. Larionova, T. P. Trofimova, M. I. Adamovich, A. Pavukova, Joakim Nystrand, Dong-Hai Zhang, V. Vashist, M. Roeper, C.G. Lee, Mihaela Gheata, L. G. Sarkisova, E. K. Kanygina, I. Y. Chasnikov, K. G. Gulamov, V. Kumar, N. A. Salmanova, D. Skelding, S. P. Kharlamov, V. I. Bubnov, V. G. Bogdanov, U. Henjes, L.S. Peak, D. Hasegan, J. T. Rhee, M. M. Chernyavski, Y. A. Alexandrov, D. Felea, G. Z. Eligbaeva, N. V. Maslennikova, Z.V. Anzon, Y.M. Qin, N. A. Marutyan, Rashmi Raniwala, Y. C. Kim, V. V. Rusakova, N. G. Peresadko, E. S. Basova, Z.B. Yin, Shi-kun Wang, N. S. Lukicheva, S. W. Feng, G.M. Chen, A. S. Gaitinov, R. J. Wilkes, B. Singh, L. K. Mangotra, Anju Bhasin, S. I. Zhokhova, N. Saidkhanov, S. B. Luo, I. S. Mittra, S. K. Badyal, A.M. Tawfik, Z.G. Liu, X.R. Wang, A.M. Seitimbetov, N. P. Andreeva, C.I. Shakhova, I. Manhas, S. G. Gerassimov, N. K. Rao, Z. Q. Weng, K. B. Bhalla, R. Amirikas, G. I. Orlova, L. E. Eremenko, Bo Jakobsson, D. C. Zhou, V. Bradnova, M. Tothova, V. R. Sarkisyan, R. Sethi, Andrei Gheata, A. M. Bakich, F. A. Avetyan, P. Y. Zheng, Y.X. Li, Vivek K. Gupta, Maria Haiduc, Shiv K. Gupta, E. R. Ganssauge, Madan M. Aggarwal, V. S. Navotny, K. El Chenawi, Janka Vrlakova, I. Otterlund, A.K. Musaeva, C.B. Yang, J. J. Lord, S.A. Krasnov, J. Grote, M. Karabova, H. Q. Wang, W. Y. Qian, L.Z. Yu, T. Svensson, and S. Dhamija

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Fragmentation (mass spectrometry), Total angular momentum quantum number, Transverse momentum, Angular momentum coupling, Rotational transition, Atomic physics, Nuclear Experiment, Scaling, Spectral line, Fermi Gamma-ray Space Telescope
Abstract

Angular distributions of projectile-associated He fragments from Pb induced reactions on stationary Pb target at 158 A GeV/c incident momentum are reported. The precision of the angular measurements was about ±0.01 mrad. Two emission components are appearing in the projected angular spectra of the He particles, one representing fragmentation at Fermi momentum scale, while the other one exhibits large transverse momentum transfer. By scaling with the incident momentum the angular spectra of He particles are compared with earlier reported measurements of Au on Au interactions at 11.6 A GeV/c. The p T spectrum of the He particles appears the same for the two cases.

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